From patchwork Mon Oct 21 08:03:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vamsi Krishna Attunuru X-Patchwork-Id: 61558 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 308564C8D; Mon, 21 Oct 2019 10:03:52 +0200 (CEST) Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by dpdk.org (Postfix) with ESMTP id 68CD64C74 for ; Mon, 21 Oct 2019 10:03:51 +0200 (CEST) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x9L7tAlX029761; Mon, 21 Oct 2019 01:03:50 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=pfpt0818; bh=e/u35zADZvb56Y53Wq3/yHCayzbZeGlk97H2jqlVHe8=; b=Q1Iqf63wlXCFzQkRZXqNMLfPruwEX2rB1Cn7tBohbXquvKoeI7Lrs/4j/rMR+2YAnEr6 cpaKNtVFPchpB8CT/47UHrtnK5f2x9ZhJB4QE+pt9fhOYSFk0qbUwreo09CHLdm3hruK Izpqbnra42lMGoS6lq9lz6itoW/C4Hwz0tMDcfqCmnGl4DaAUxCn2hUR0S9O6LADai1S ur0Pn/orf2hs8R7uySCwu26DQcSWbYeTJwHJBBmZCu4gDHYuE8y6dM3ry1yt1dslBKSd p0FlhXci6x5nYo5cjubBNO9l7LQ+ik+kiYusb0swFMeKZ9c8UqBV7xX/0fJ9rvRCr9nF eQ== Received: from sc-exch01.marvell.com ([199.233.58.181]) by mx0b-0016f401.pphosted.com with ESMTP id 2vr20mn69f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 21 Oct 2019 01:03:50 -0700 Received: from SC-EXCH03.marvell.com (10.93.176.83) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Mon, 21 Oct 2019 01:03:48 -0700 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server id 15.0.1367.3 via Frontend Transport; Mon, 21 Oct 2019 01:03:48 -0700 Received: from hyd1vattunuru-dt.caveonetworks.com (unknown [10.29.52.72]) by maili.marvell.com (Postfix) with ESMTP id 2B9F33F7040; Mon, 21 Oct 2019 01:03:44 -0700 (PDT) From: To: CC: , , , , , , , , Vamsi Attunuru Date: Mon, 21 Oct 2019 13:33:20 +0530 Message-ID: <20191021080324.10659-1-vattunuru@marvell.com> X-Mailer: git-send-email 2.8.4 In-Reply-To: <20190816061252.17214-1-vattunuru@marvell.com> References: <20190816061252.17214-1-vattunuru@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,1.0.8 definitions=2019-10-21_02:2019-10-18,2019-10-21 signatures=0 Subject: [dpdk-dev] [PATCH v11 0/4] kni: add IOVA=VA mode support X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Vamsi Attunuru --- V11 Changes: * Added iova to kva address translation routines in kernel module to make it work in iova=va mode which enables DPDK to create kni devices on any kind of backed device/memory. * Added ``--legacy-kni`` eal option to make existing KNI applications work with DPDK 19.11 and later versions. * Removed previously added pci device info from kni device info struct. V10 Changes: * Fixed function return code on failure when min_chunk_size > pg_sz. * Marked new mempool populate routine as EXPERIMENTAL. V9 Changes: * Used rte_mempool_ops_calc_mem_size() instead of default handler in the new mempool populate routine. * Check min_chunk_size and return values. * Removed ethdev_info memset to '0' and moved pci dev_info populate into kni_dev_pci_addr_get() routine. * Addressed misc. review comments. V8 Changes: * Remove default mempool populate() routine changes. * Add kni app specific mempool create & free routines. * Add new mempool populate routine to allocate page-aligned memzones with page size to make sure all mempool objects reside on a page. * Update release notes and map files. V7 Changes: * Removed previously proposed mempool flag and made those page boundary checks default in mempool populate() except for the objects size bigger than the size of page. * Removed KNI example application related changes since pool related requirement is taken care in mempool lib. * All PCI dev related info is moved under rte_eal_iova_mode() == VA check. * Added wrapper functions in KNI module to hide IOVA checks and make address translation routines more readable. * Updated IOVA mode checks that enforcing IOVA=PA mode when IOVA=VA mode is enabled. V6 Changes: * Added new mempool flag to ensure mbuf memory is not scattered across page boundaries. * Added KNI kernel module required PCI device information. * Modified KNI example application to create mempool with new mempool flag. V5 changes: * Fixed build issue with 32b build V4 changes: * Fixed build issues with older kernel versions * This approach will only work with kernel above 4.4.0 V3 Changes: * Add new approach to work kni with IOVA=VA mode using iommu_iova_to_phys API. Vamsi Attunuru (4): mempool: populate mempool with the page sized chunks eal: add legacy kni option kni: add IOVA=VA support kni: add IOVA=VA support in kernel module doc/guides/prog_guide/kernel_nic_interface.rst | 26 +++++++++ doc/guides/rel_notes/release_19_11.rst | 17 ++++++ examples/kni/main.c | 6 +- kernel/linux/kni/compat.h | 4 ++ kernel/linux/kni/kni_dev.h | 31 ++++++++++ kernel/linux/kni/kni_misc.c | 39 ++++++++++--- kernel/linux/kni/kni_net.c | 58 ++++++++++++++----- lib/librte_eal/common/eal_common_options.c | 5 ++ lib/librte_eal/common/eal_internal_cfg.h | 2 + lib/librte_eal/common/eal_options.h | 2 + lib/librte_eal/linux/eal/eal.c | 40 +++++++++---- lib/librte_eal/linux/eal/include/rte_kni_common.h | 1 + lib/librte_kni/Makefile | 1 + lib/librte_kni/meson.build | 1 + lib/librte_kni/rte_kni.c | 67 ++++++++++++++++++++-- lib/librte_kni/rte_kni.h | 48 ++++++++++++++++ lib/librte_kni/rte_kni_version.map | 3 + lib/librte_mempool/rte_mempool.c | 69 +++++++++++++++++++++++ lib/librte_mempool/rte_mempool.h | 20 +++++++ lib/librte_mempool/rte_mempool_version.map | 2 + 20 files changed, 402 insertions(+), 40 deletions(-)